Home / 188,619.42-260,290.53-103,737.90

Finding the Fourth Proportional to 188,619.42, 260,290.53 and 103,737.90

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Solution

The fourth proportional to 188,619.42, 260,290.53 and 103,737.90 is: 143,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,619.42 : 260,290.53 = 103,737.90 : x
  2. Step 2: Convert to fraction form
    188,619.42/260,290.53 = 103,737.90/x
  3. Step 3: Cross multiply
    188,619.42x = 260,290.53 × 103,737.90
  4. Step 4: Simplify right side
    188,619.42x = 27,001,992,972.09
  5. Step 5: Solve for x
    x = 27,001,992,972.09/188,619.42
  6. Step 6: Final answer
    x = 143,155.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.